Not to spoil the mood or anything, I love improv, and the supermarket musical was genius, but isn't it a little unfair to do this in a library?

Speaking as a student who relies on the city and university libraries as a source of information and a place to get some work done away from the distractions of the internet and whatnot I'd be a little teed off if just as I got into some complicated subject people started running around and being distracting. Maybe if it were done around the shelves rather than in the reading room...?

@ Kiri- It only lasted a few minutes and everyone seemed to love it. In fact, the library actually contacted us to do a prank in the reading room! The library is facing budget cuts so we made this video to help save the library =)

i love this! i was just giggling when the ghosts came inside the library one by one but as soon as the ghostbusters started walking slowly in, i was laughing out loud! alone! ahahahaha you guys are great!

I've set your photos as my desktop wallpapers. Whenever I'm feeling down and disappointed with the world, you and your blog cheer me up like none other. Thank you for spreading so much beauty and happiness in this world.

I check this blog daily because it makes me so happy and I saw this on the blog then went to my email on yahoo and this was one of the stories and it felt so cool seeing this on that major site! I felt a little famous

Your blog always makes me smile and makes me so happy that people like you exist. So many people wonder what they can from someone or how they can use them but you are the kind of person who wonders what you can do for them. Your blog is a wonderful source of inspiration for people of all ages. I hope you never quit blogging! : )

I loved this one too! In fact, I showed the video in my class (I teach English in a high school in Holland) and made an internet research assignment out of it, too! I had so much fun today watching the video with my students :) Thanks a bunch!

This made my day! Libraries need a little lightening up now and then. This reminds me of a story I heard about a guy in a gorilla suit chasing a guy in a banana suit in a library! How fun! Thanks for the laughs.

How fun is this?! I'd just watched the video and a local TV News station here in Los Angeles (ktla.com) just did a story on it, showing some of the chase scenes with the music and everything, and naming Improv Everywhere by name along with why you did it, too - so cool to know that word of you all is getting out there even here on the West Coast! I'm forwarding this to my FB friends who'll get a big kick out of this! Great job, everyone involved with this :)